Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Double Resonance Techniques: Overview

Double Resonance Techniques: Overview

Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Increased primary breast tumor expression of CD73 is associated with development of bone metastases and is a potential biomarker for adjuvant bisphosphonate use.

Scientific reports·2025

Same author

Shake Table Tests on Scaled Masonry Building: Comparison of Performance of Various Micro-Electromechanical System Accelerometers (MEMS) for Structural Health Monitoring.

Sensors (Basel, Switzerland)·2025

Same author

Mid-infrared dielectric laser acceleration in a silicon dual pillar structure.

Optics express·2024

Same author

Structured illumination ptychography and at-wavelength characterization with an EUV diffuser at 13.5 nm wavelength.

Optics express·2024

Same author

Enhancement of third harmonic generation induced by surface lattice resonances in plasmonic metasurfaces.

Optics letters·2023

Same author

Design of computer-generated holograms based on semi-rigorous simulations of sub-wavelength structures.

Optics express·2023

Search research articles

Related Experiment Video

Updated: Jun 10, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

Highly efficient three-level blazed grating in the resonance domain.

Maria Oliva¹, Dirk Michaelis, Tino Benkenstein

¹Fraunhofer Institute for Applied Optics and Precision Engineering, Albert-Einstein-Strasse 7, 07745 Jena, Germany. maria.oliva@iof.fraunhofer.de

|August 19, 2010

Summary

Researchers developed advanced three-level transmission gratings using a novel three-wave interference method. These gratings achieve a record 86% efficiency, minimizing shadowing losses for improved performance in optical applications.

More Related Videos

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

Published on: December 22, 2015

Related Experiment Videos

Last Updated: Jun 10, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

Published on: December 22, 2015

Area of Science:

Optics and Photonics
Materials Science

Background:

Multilevel transmission gratings are crucial optical components.
Shadowing losses can limit the efficiency of conventional gratings.
Achieving high efficiency in the resonance domain near normal incidence remains a challenge.

Purpose of the Study:

To design and fabricate novel three-level transmission gratings.
To reduce shadowing losses in resonant gratings.
To achieve high optical efficiency using a three-wave interference mechanism.

Main Methods:

Development of a new fabrication technique for homogeneous, large-area multilevel gratings.
Characterization of gratings in the resonance domain.
Utilizing a three-wave interference mechanism for grating design.

Main Results:

Successful design, fabrication, and characterization of three-level transmission gratings.
Demonstrated reduction in shadowing losses.
Achieved a measured efficiency of 86%, the highest reported for this type of grating near normal incidence.

Conclusions:

The novel three-wave interference approach enables efficient resonant multilevel transmission gratings.
The new fabrication method overcomes limitations of previous techniques.
The achieved 86% efficiency sets a new benchmark for resonant transmission gratings.